Building-block.



10.881.425v n y PATBNTED MAB.; 1o, 190s.

- l ,0;P. LUNDBLL.

BUILDING BLOG-K'.

APPLIOATION' FILED APE. ZB, 1906.

` A\\\\\\\\\\\\\\\\\\\\\\\\\\rllllllllll 'UNITED STATES PgnNr ormoni.

oLOFfPjLUNDELn-or SIOUX FALLS, soU'rn DAKOTA.

` LOCK.

- Application led April 26,

To all 'whom 'it may concrn:

Be it known that I, OLor P. LUNDELL, a

citizen oi' the United States, residing at Sioux Falls, in the county'of Minnehaha and State of South Dakota, have invented certain new and useful Improvements in Building-Blocks,

of which the following is a specification.

This invention relates to new and useful improvements in build-ing blocks and especially to that type employed in cement wall construction in which it 1s a primary desideratum to provide a block having moisture resisting properties.

The resent invention aims to provide a block resi ned rto attain the above general object, an'this attainment is fulfilled by the provision in said block of a pluralityT of longi-4 tudinal channels and recesses. in the sides thereof, which in the assemblage of said blocks to form a wall, co-act with one another to afford continuous air passages extendin verically and yhorizontally through' sai wa The detailed construction will appear in the course of the following descr1pt1on,-refer i ence being had to the accompanying drawings forming a part ofv this specification, like numerals designating like parts throughout the several views, wherein, l

Figure 1 is-a perspective View of a block constructed in accordance with the present invention- Fig. 2' is a vertical transverse section of a wall constructed ofv a'plurality of blocks as 'shown-in Fig. 1. Fig. 3 1s afvertical longitudinal section of the same on the line l3 of Fig. 2, and Fig.`4 is a perspective viewof a block embodied 1n aV slightly modified adaptation of the invention.

In thev practical embodiment tof my inven-v tion I employ a block A'Kwhich is formed on each of its side'faces withlongitudin'al recesses co-extensivewith said faces andem- Specificationl of Letters Patent.

whs. sei-m1 No. 313,821.

-the confront' arallel to the upper and I Patented March 10, 1908.

are formed adjacent to the upper and lower ends thereofand beyond the recesses 1 withparallel longitudinal grooves 6 which registei' Y 1n adjacent superimposed blocks and afford an opening for the rece tion ofthe mortar whic bin s a pair of sucy blocks conjorntl'y.

It will thus be seen that in the assembla -e of the Wall from the blocks constructe.` as

shown in Fig. l1 and lay in vertical series upon theirside faces continuous verticalair spaces will be afforded by therecesses 4 in their registering disposition in the confronting relation of a alr'of blocks and'hori-zontall air s aces will ,e afforded by the recesses l' in eil .itegistering relation in the su erimposed relation of the pairs of adjacent b ocks. -The blocks are laid in a well known manner such as in staggered "relation so that the air passages formed by the recesses 4 and the recesses 1 as Well as the passagesformed by the chambers V5 will be in communication throughout the entire Wall and thus afford the greatest-degree of moisture resisting airyl surface.

In the modification shown in Fig. 4 the block is altered somewhat in shape and the Horizontal grooves 7 of substantial V shape are provided in the sides which register 1n relation of the blocks to form horizonta air passages. Each block is further provided with a vertical channel "recesses` are eliminated at the ends thereof. 7

8 extending longitudinally therethrough and y communicating throughout an entire series of such blocks so as to aord independent horizontal air passages.

It is obvious that ,various minor changes such as are contem lated in arrangement andshape of the d` erent channels and recesses, may be made without departing from thespirit and scope of the invention as def nedin the a pended claims.

Having fu y described my invention I claim: l

1. 'A building'block for hollow tiled walls, comprising a central portion oit. constricted facial-dimensions and inner andw outer portions of greater facial dimensions projecting beyond said central portion' on all sides thereof, and of substantially the same width therewith, said' block being formed -with straight inclined surfaces extending between said innerand outer portions and said 'central portion, said central ortion being formed with a longitudinal c el Athereclined surfaces wit through, and said block being further formed solid With the exception of'said channel, sabstant-iallyl as described.

2. A building block for hollow tiled Walls comprising a central portion of constricted facial dimensions, and inner and tions of greater facial dimensions beyond said central portion on thereof and of substantially the same width therewith, said block formed with straight inprojecting clined surfaces extending between said inner and outer portions and said central portion, said central portion havin r a 4longitudinal channel extending )artially between said inil its direction of greatest Width lying between said inner and outer portions, ands'aid block being further formed j tral portion, said central outer porthrough, and partially all sides i lying between said inner and outer f and at right angles thereto, said inner and formed on each surface thereof, and of substantially the same width outer portions being i of 'their sides of greatest length with parallel j block being j exception of solid with the exception of said channel, Q

substantially as described.

3. A building blockfor hollow tiled walls comprising a central portion of constricted facial dimensions. and/inner and outer portions of greater facial dimensions projecting beyond said central portion on all sides grooves designed to register with corresponding grooves of the adjacent blocks, and said further formed solidV with the. said channel and said grooves, substantially as described.

In testimony whereof I aiiix my signature in presence of two witnesses.

OLOF P. LUNDELL. l/Vitnesses MARIE MCKEE,

Lans ANDERSON.

channel therevto 

